Home / 105,868.10-146,070.60-63,396.56

Finding the Fourth Proportional to 105,868.10, 146,070.60 and 63,396.56

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Solution

The fourth proportional to 105,868.10, 146,070.60 and 63,396.56 is: 87,470.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,868.10 : 146,070.60 = 63,396.56 : x
  2. Step 2: Convert to fraction form
    105,868.10/146,070.60 = 63,396.56/x
  3. Step 3: Cross multiply
    105,868.10x = 146,070.60 × 63,396.56
  4. Step 4: Simplify right side
    105,868.10x = 9,260,373,557.14
  5. Step 5: Solve for x
    x = 9,260,373,557.14/105,868.10
  6. Step 6: Final answer
    x = 87,470.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.